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Double blinding

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A study that is set up so that participants do not know which study intervention they are getting, and researchers do not know either. Some studies are done this way because knowing which treatment each participant is getting can affect the results of the study, through a concept called bias. Participants can ask to find out which study treatment they received after the study ends. See also blinding. Clinical Research Glossary – Plain Language Definitions (mrctcenter.org)


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